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Configuration example
Network requirements
As shown in Figure 17, configure traffic filtering to filter the packets with port 21 as the source port and
received on Ten-GigabitEthernet 1/0/1.
Figure 17 Network diagram
Configuration procedure
# Create advanced ACL 3000, and configure a rule to match packets whose source port number is 21.
<DeviceA> system-view
[DeviceA] acl number 3000
[DeviceA-acl-adv-3000] rule 0 permit tcp source-port eq 21
[DeviceA-acl-adv-3000] quit
# Create a traffic class named classifier_1, and use ACL 3000 as the match criterion in the traffic class.
[DeviceA] traffic classifier classifier_1
[DeviceA-classifier-classifier_1] if-match acl 3000
[DeviceA-classifier-classifier_1] quit
# Create a traffic behavior named behavior_1, and configure the traffic filtering action to drop packets.
[DeviceA] traffic behavior behavior_1
[DeviceA-behavior-behavior_1] filter deny
[DeviceA-behavior-behavior_1] quit
# Create a QoS policy named policy, and associate traffic class classifier_1 with traffic behavior
behavior_1 in the QoS policy.
[DeviceA] qos policy policy
[DeviceA-qospolicy-policy] classifier classifier_1 behavior behavior_1
[DeviceA-qospolicy-policy] quit
# Apply the QoS policy named policy to the incoming traffic of Ten-GigabitEthernet 1/0/1.
[DeviceA] interface ten-gigabitethernet 1/0/1
[DeviceA-Ten-GigabitEthernet1/0/1] qos apply policy policy inbound
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